Fiat Bravo Service Manual page 514

Bravo-Brava
chock the vehicle by placing wedges under the wheels;
apply the handbrake fully;
press the brake pedal d o w n hard with the left foot;
start the engine, warm it up to temperature and check that the idle speed is correct;
move the selector lever to position D;
read the measurement of the line pressure during idling;
fully press the accelerator pedal with the right foot and quickly read the line pressure at the engine's
stall speed.
A
The stall speed test must not exceed 5 seconds
Repeat the last t w o operations with the selector lever on position R.
Speed
Line pressure
Higher than specified value in
both D and R
Less than specified value in both D and R
Less than specified value only in D
Less than specified value only in R
Copyright Fiat Auto
Auto transmission and differential
ft
16v
Position D (and 1 -2-3)
3.7 - 4.3 bar
Idling
3.8 - 4.4 k g / c m
10.8 - 12.5 bar
Stall
1 1 . 0 - 1 2 . 8 k g / c m
Description and operation
in duration.
Position R (and N-P)
5.4 - 6.3 bar
2 5.5 - 6.4 k g / c m
14.1 - 16.9 bar
2 14.4 - 17.2 k g / c m
Possible causes
Fault in pressure control solenoid
Regulating valves faulty
Fault in pressure control solenoid
Regulating valves faulty
Oil pump faulty
Leaks in hydraulic circuit in forward gears
Leaks in hydraulic circuit in reverse and neutra
21-27.
P 4 A 3 4 A B O I
2
2
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